Published: Oct 05, 2011 5:32 PM EDT
Updated: Oct 05, 2011 6:30 PM EDT

CUPERTINO, Calif. (AP) - Authorities are searching door to door with guns drawn in a neighborhood about 5 miles from the Northern California quarry where a gunman killed two and wounded six at a morning meeting.
    
The search in Sunnyvale was one of several under way Wednesday morning as authorities sought 45-year-old Shareef Allman, who they say opened fire around 4 a.m.
    
Allman also is suspected of wounding a woman in an attempted carjacking in Cupertino more than two hours later.
    
Cupertino schools are on lockdown or closed as the search continued.
    
Santa Clary County Sheriff's Lt. Rick Sung says Allman was at the routine safety meeting, became disgruntled and left. He says Allman then returned and started shooting people.
    
Authorities are still searching the quarry for possible victims or workers still in hiding.

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